Definition of TILLAMOOK. 1. a: a Salishan people of the Oregon coast b: a member of such people. 2.
That her roommates remember to walk the new puppy = clause as antecedent; it = personal pronoun. Other times, the antecedent might be the word, phrase, or clause that a demonstrative pronoun replaces.
Remember that a pronoun is a word that takes the place of or refers to a noun. An antecedent is the word that a pronoun replaces or refers to. A vague pronoun reference occurs when there's no antecedent provided at all, or when there's more than one possible antecedent.